| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refused | 0 |
0%
|
| -888 | Don't know | 0 |
0%
|
| 1 | Yes, always | 549 |
72%
|
| 2 | Yes, sometimes | 171 |
22.4%
|
| 3 | Never | 43 |
5.6%
|
| Sysmiss | 40 |